CN106289982B - A kind of stretching mechanical property testing device - Google Patents
A kind of stretching mechanical property testing device Download PDFInfo
- Publication number
- CN106289982B CN106289982B CN201610970776.5A CN201610970776A CN106289982B CN 106289982 B CN106289982 B CN 106289982B CN 201610970776 A CN201610970776 A CN 201610970776A CN 106289982 B CN106289982 B CN 106289982B
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- Prior art keywords
- chuck
- mechanical property
- bar
- groove
- upper grip
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0405—Features allowing alignment between specimen and chucks
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of stretching mechanical property testing devices, including the upper grip component connecting with upper connecting rod axial restraint and the lower chuck component connecting with lower link axial restraint；The upper grip component, including upper grip bar and with the upper grip bar along the upper tensioning chuck being slidably matched perpendicular to draw direction；The lower chuck component, including lower collet bar and with the lower collet bar along the lower tensioning chuck being slidably matched perpendicular to draw direction；The upper tensioning chuck and the lower tensioning chuck are for fixing sample.When test, pass through the stretching to sample, so that upper tensioning chuck and lower tensioning chuck edge generate the effect of power perpendicular to draw direction and slide, and then the draw direction of adjust automatically sample, so that draw direction is identical as upper grip bar and lower collet bar direction, so that sample is preferably in two power bar states.
Description
Technical field
The present invention relates to material properties test technical field more particularly to a kind of stretching mechanical property testing devices.
Background technique
The mechanical property of material refers to that material under varying environment (temperature, medium, humidity), bears various plus loads
The mechanical characteristics shown when (stretching, compression, bending, torsion, impact, alternate stress etc.).As shown in Figure 1, existing drawing
Mechanics Performance Testing is stretched, upper grip 1 is mostly used to connect by upper pin 2 with upper connecting rod 3 greatly, lower collet 4 is by lower pin 5 under
The mode that connecting rod 6 connects, however in order to keep the extension test of sample more accurate, it is required that sample is preferably in two power bars
State (i.e. the axle center of upper grip 1 and the axle center of lower collet 4 is identical as the draw direction of sample 7), thus it is right in test process
It is more demanding in the concentricity of upper grip and lower collet, and existing test device is in actual production, upper grip and lower collet
It is relatively difficult to achieve absolute coaxial, and the otherness of the concentricity of the upper grip and lower collet of different test devices is larger, therefore not
With test device when testing sample of the same race, test result otherness is also larger.
In conclusion the problem of how making sample preferably be in two power bar states, it has also become those skilled in the art are urgently
Technical problem to be solved.
Summary of the invention
The object of the present invention is to provide a kind of stretching mechanical property testing device, so as to be preferably in two power rod-shaped for sample
State.
To achieve the goals above, the present invention provides a kind of stretching mechanical property testing devices, including with upper connecting rod axis
To the upper grip component being fixedly connected and the lower chuck component being connect with lower link axial restraint；
The upper grip component is slidably matched including upper grip bar and with the upper grip bar edge perpendicular to draw direction
Upper tensioning chuck；
The lower chuck component is slidably matched including lower collet bar and with the lower collet bar edge perpendicular to draw direction
Lower tensioning chuck；
The upper tensioning chuck and the lower tensioning chuck are for fixing sample.
Preferably, the first groove, one end of the upper tensioning chuck embeddable described are provided on the upper grip bar
One groove, and can be slided along first groove；The second groove is provided on the lower collet bar, the lower tensioning chuck
Embeddable second groove in one end, and can be slided along second groove.
Preferably, first groove and second groove are dovetail groove.
Preferably, the upper tensioning chuck and the lower tensioning chuck be provided with the embeddable dovetail groove taper it is convex
Card.
Preferably, the upper grip component can be around the axis rotation and/or the lower chuck component energy of the upper connecting rod
Enough axis around the lower link rotate.
Preferably, the direction and the lower tensioning chuck and institute that the upper tensioning chuck and the upper grip bar are slidably matched
The direction being slidably matched for stating lower collet bar intersects vertically.
Preferably, the environment control unit of the device include cabinet and be arranged in the cabinet inside heating with it is heat-insulated
The inside of the heating and heat-proof device is arranged in device, the upper grip component and the lower chuck component.
Preferably, the cabinet is horizontal cylindrical shape cabinet.
Preferably, multiple doors are provided on the cabinet.
Preferably, device for moving and adjusting is provided with below the environment control unit.
Introduce content compared to background technique, above-mentioned stretching mechanical property testing device, by respectively by upper grip bar with
Upper tensioning chuck edge is slidably matched perpendicular to draw direction；Lower collet bar is matched with lower tensioning chuck along perpendicular to draw direction sliding
It closes.When test, by the stretching to sample, so that upper tensioning chuck and lower tensioning chuck edge generate power perpendicular to draw direction
Effect and slide, and then the draw direction of adjust automatically sample so that draw direction and upper grip bar and lower collet bar
Direction is identical, so that sample is preferably in two power bar states.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of traditional stretching mechanical property testing device；
Fig. 2 is that (environment control is not shown in the structural schematic diagram of stretching mechanical property testing device provided in an embodiment of the present invention
Device processed)；
Fig. 3 is that the structural schematic diagram of stretching mechanical property testing device provided in an embodiment of the present invention (is not shown deformation to survey
Measure extensometer).
In figure 1 above -3,
Upper grip 1, upper pin 2, upper connecting rod 3, lower collet 4, lower pin 5, lower link 6, sample 7, deformation measurement extensometer
8, extend bar 9, upper grip bar 10, upper tensioning chuck 11, lower collet bar 12, lower tensioning chuck 13, cabinet 14, heating with heat-insulated dress
Set 15, device for moving and adjusting 16.
Specific embodiment
Core of the invention is to provide a kind of stretching mechanical property testing device, so that sample is preferably in two power rod-shaped
State.
In order to make those skilled in the art more fully understand technical solution provided by the invention, below in conjunction with attached drawing and
The present invention is described in further detail for specific embodiment.
As shown in Figures 2 and 3, a kind of stretching mechanical property testing device provided in an embodiment of the present invention, including with upper company
The upper grip component of 3 axial restraint of bar connection and the lower chuck component being connect with 6 axial restraint of lower link；Upper grip component, packet
Include upper grip bar 10 and with upper grip bar along the upper tensioning chuck 11 being slidably matched perpendicular to draw direction；Lower chuck component, packet
Include lower collet bar 12 and with lower collet bar along the lower tensioning chuck 13 being slidably matched perpendicular to draw direction；Upper 11 He of tensioning chuck
Lower tensioning chuck 13 is for fixing sample.
Introduce content compared to background technique, above-mentioned stretching mechanical property testing device, by respectively by upper grip bar with
Upper tensioning chuck edge is slidably matched perpendicular to draw direction；Lower collet bar is matched with lower tensioning chuck along perpendicular to draw direction sliding
It closes.When test, by the stretching to sample, so that upper tensioning chuck and lower tensioning chuck edge generate power perpendicular to draw direction
Effect and slide, and then the draw direction of adjust automatically sample so that draw direction and upper grip bar and lower collet bar
Direction is identical, so that sample is preferably in two power bar states.
Further, the first groove, one end embeddable first of upper tensioning chuck 11 are provided on above-mentioned upper grip bar 10
Groove, and can be slided along the first groove；The second groove is provided on lower collet bar 12, one end of lower tensioning chuck 13 is embeddable
Second groove, and can be slided along the second groove.Of course, it should be understood that being arranged on above-mentioned upper grip bar and lower collet bar recessed
The mode of slot is only the embodiment of the present invention for a kind of above-mentioned citing being slidably matched, and can also be tensioning chuck 11
One end be provided with the first groove, embeddable first groove of upper grip bar, one end of lower tensioning chuck 13 is provided with the second groove,
The form of lower embeddable second groove of collet bar；Or the common mode that other are slidably matched of those skilled in the art.
Further, above-mentioned first groove and the second groove are dovetail groove.It is appreciated of course that above-mentioned dovetail groove
Only one kind of the embodiment of the present invention is preferably illustrated, and can also be the groove of other forms, such as semi-circular recesses or circle
Shape slot etc., and the simpler convenience of processing of dovetail groove opposed semicircular slot and circular trough.
Further, the taper that above-mentioned upper tensioning chuck 11 and lower tensioning chuck 13 are provided with embeddable dovetail groove is convex
Card.It is appreciated of course that above-mentioned taper convex clip be only be slidably matched in the embodiment of the present invention with dovetail groove one kind it is excellent
Selection of land citing, can also be arc convex, semi-cylindrical hill or soccer star's protrusion etc..
Further, the upper grip component can be around the axis rotation and/or the lower chuck component of the upper connecting rod 3
It can be rotated around the axis of the lower link 6.Specifically can be above-mentioned upper grip component can be around the axis rotation of upper connecting rod 3；
Being also possible to lower chuck component can rotate around the axis of lower link 6；It can also be the combination of above two mode, i.e. upper grip
Component can be around the axis rotation of upper connecting rod 3, and lower chuck component can be rotated around the axis of lower link 6.It is above-mentioned by being arranged
The form of rotation, so that the axis parallel of the draw direction of more convenient adjustment sample and upper grip bar and lower collet bar, i.e., more
Two power bar states are preferably in convenient for sample.
Further, the direction and lower tensioning chuck 13 and lower collet that upper tensioning chuck 11 is slidably matched with upper grip bar 10
The direction of bar 12 being slidably matched intersects vertically.Of course, it should be understood that the above-mentioned direction being slidably matched can also be it is non-perpendicular
The arrangement of intersection, only the embodiment of the present invention preferably uses the above-mentioned arrangement to intersect vertically.Because of sliding
The direction of cooperation intersects vertically so that upper tensioning chuck and lower tensioning chuck during stretching under tension automatically adjust when,
Deviation can be carried out automatic adjustment to the achievable circumferential direction along upper stretch rod or lower stretch rod at any angle.
Further, the environment control unit of the device include cabinet 14 and be arranged in cabinet 14 inside heating with every
The inside of heating with heat-proof device 15 is arranged in thermal 15, upper grip component and lower chuck component.By setting heating with every
Thermal makes, and reduces the space of heating, easily facilitates heating and temperature control.
Further, above-mentioned cabinet 14 is horizontal cylindrical shape cabinet.Will be understood is above-mentioned horizontal cylinder formula cabinet
Only one kind of the embodiment of the present invention is preferably illustrated, and can also be the cabinet of other shapes.
Further, multiple doors are provided on above-mentioned cabinet 14.By the way that multiple doors are arranged, so that can in test installation process
To realize that multiple people assemble jointly.
Further, device for moving and adjusting 16 is provided with below above-mentioned environment control unit.It can by device for moving and adjusting
So that the transfer of whole device position is more convenient.It is appreciated of course that above-mentioned device for moving and adjusting can pass through idler wheel
Mode, can also be by way of sliding rail or the common other modes of those skilled in the art.
Stretching mechanical property testing device provided by the present invention is described in detail above.It should be noted that
All the embodiments in this specification are described in a progressive manner, and the highlights of each of the examples are implement with other
The difference of example, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (9)
1. a kind of stretching mechanical property testing device, which is characterized in that including the upper grip being connect with upper connecting rod (3) axial restraint
Component and the lower chuck component being connect with lower link (6) axial restraint；
The upper grip component is slidably matched including upper grip bar (10) and with the upper grip bar edge perpendicular to draw direction
Upper tensioning chuck (11)；
The lower chuck component is slidably matched including lower collet bar (12) and with the lower collet bar edge perpendicular to draw direction
Lower tensioning chuck (13)；
The upper tensioning chuck (11) and the lower tensioning chuck (13) are for fixing sample；
The first groove is provided on the upper grip bar (10), one end embeddable described first of the upper tensioning chuck (11) is recessed
Slot, and can be slided along first groove；The second groove, the lower tensioning chuck are provided on the lower collet bar (12)
(13) embeddable second groove in one end, and can be slided along second groove.
2. stretching mechanical property testing device as described in claim 1, which is characterized in that first groove and described second
Groove is dovetail groove.
3. stretching mechanical property testing device as claimed in claim 2, which is characterized in that the upper tensioning chuck (11) and institute
State the taper convex clip that lower tensioning chuck (13) is provided with the embeddable dovetail groove.
4. stretching mechanical property testing device as described in claim 1, which is characterized in that the upper grip component can be around institute
The axis rotation and/or the lower chuck component for stating upper connecting rod (3) can be rotated around the axis of the lower link (6).
5. stretching mechanical property testing device as described in claim 1, which is characterized in that the upper tensioning chuck (11) and institute
State being slidably matched for direction that upper grip bar (10) is slidably matched and the lower tensioning chuck (13) and lower collet bar (12)
Direction intersect vertically.
6. stretching mechanical property testing device as described in claim 1, which is characterized in that the environment control unit packet of the device
Include the heating and heat-proof device (15) of cabinet (14) and setting in the inside of the cabinet (14), the upper grip component and described
Lower chuck component setting is in the inside of the heating and heat-proof device (15).
7. stretching mechanical property testing device as claimed in claim 6, which is characterized in that the cabinet (14) is horizontal cylinder
Shape cabinet.
8. stretching mechanical property testing device as claimed in claim 6, which is characterized in that be provided on the cabinet (14) more
A door.
9. stretching mechanical property testing device as claimed in claim 6, which is characterized in that set below the environment control unit
It is equipped with device for moving and adjusting (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970776.5A CN106289982B (en) | 2016-10-27 | 2016-10-27 | A kind of stretching mechanical property testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970776.5A CN106289982B (en) | 2016-10-27 | 2016-10-27 | A kind of stretching mechanical property testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106289982A CN106289982A (en) | 2017-01-04 |
| CN106289982B true CN106289982B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610970776.5A Active CN106289982B (en) | 2016-10-27 | 2016-10-27 | A kind of stretching mechanical property testing device |
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| CN (1) | CN106289982B (en) |
Families Citing this family (5)
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|---|---|---|---|---|
| CN108548713B (en) * | 2018-03-29 | 2022-10-04 | 合肥工业大学 | Correctable mobile test device and test method thereof |
| CN108918292A (en) * | 2018-07-03 | 2018-11-30 | 上海曙赢新材料有限公司 | Tensile test device is used in a kind of exploitation of new material |
| CN110726613B (en) * | 2019-10-21 | 2024-06-07 | 吉林大学 | Stretching extensometer suitable for large-diameter thin-wall round tube |
| CN111238957B (en) * | 2020-04-08 | 2021-01-08 | 黄河科技学院 | Al-based binary intermetallic compound thermodynamic property experimental device |
| CN111795891A (en) * | 2020-07-31 | 2020-10-20 | 南方科技大学 | Tensile creep chuck device with multidirectional degree of freedom and creep testing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080824A (en) * | 1976-10-13 | 1978-03-28 | Starks Emmett A | Test specimen grip assembly |
| DE10242706A1 (en) * | 2002-09-13 | 2004-03-18 | Sobatec Gmbh | Test bar or test sample clamping arrangement for clamping bars that are used in material testing, whereby the ends of the bar are held in matching relief shapes for the bar ends that are formed from two interlocking halves |
| DE69628898T2 (en) * | 1995-12-12 | 2004-05-06 | Société Nationale d'Etude et de Construction de Moteurs d'Aviation | Device for off-axis testing of anisotropic materials |
| CN201707256U (en) * | 2010-05-31 | 2011-01-12 | 武汉钢铁(集团)公司 | Sample vertical centering clamp for tensile testing machine |
| CN103048190A (en) * | 2012-12-14 | 2013-04-17 | 天津钢铁集团有限公司 | Tensile test fixture for tensile testing machine |
| CN204613021U (en) * | 2015-05-13 | 2015-09-02 | 中国飞机强度研究所 | A kind of centering assembly for testing machine |
-
2016
- 2016-10-27 CN CN201610970776.5A patent/CN106289982B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080824A (en) * | 1976-10-13 | 1978-03-28 | Starks Emmett A | Test specimen grip assembly |
| DE69628898T2 (en) * | 1995-12-12 | 2004-05-06 | Société Nationale d'Etude et de Construction de Moteurs d'Aviation | Device for off-axis testing of anisotropic materials |
| DE10242706A1 (en) * | 2002-09-13 | 2004-03-18 | Sobatec Gmbh | Test bar or test sample clamping arrangement for clamping bars that are used in material testing, whereby the ends of the bar are held in matching relief shapes for the bar ends that are formed from two interlocking halves |
| CN201707256U (en) * | 2010-05-31 | 2011-01-12 | 武汉钢铁(集团)公司 | Sample vertical centering clamp for tensile testing machine |
| CN103048190A (en) * | 2012-12-14 | 2013-04-17 | 天津钢铁集团有限公司 | Tensile test fixture for tensile testing machine |
| CN204613021U (en) * | 2015-05-13 | 2015-09-02 | 中国飞机强度研究所 | A kind of centering assembly for testing machine |
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| Publication number | Publication date |
|---|---|
| CN106289982A (en) | 2017-01-04 |
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Address after: 130000 Silicon Valley Street 1118, Changchun High-tech Zone, Jilin Province Applicant after: The machine test equipment Limited by Share Ltd Address before: 130000 Silicon Valley Street 1118, Changchun City, Jilin Province Applicant before: Changchun Research Institute for Mechanical Science Co., Ltd. |
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